A physics student on Planet Exidor throws a ball, and it follows the parabolic t

Question

A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory shown in the figure. The ball's position is shown at 1.0s intervals until t = 3.0s. At t = 1.0 s the ball's velocity has components vx = 1.0m/s, vy = 3.0m/s. d) What was the ball's launch angle? A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory shown in the figure. The ball's position is shown at 1.0s intervals until t = 3.0s. At t = 1.0 s the ball's velocity has components vx = 1.0m/s, vy = 3.0m/s.

Explanation / Answer

A)ux=u cos(theta)=1 M/S...
   uy= u sin(theta)=6m/s...

B)at t=2 sec...
u cos(?) =1 m/s...
u sin(?)= 0 m/sec....

C) g=3 m/s^2.....

D) angle =tan^-1(2*g)= 80.53 degrees with +X-axis

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